US6283203B1 - Device for preventing pipe buckling - Google Patents

Device for preventing pipe buckling Download PDF

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Publication number
US6283203B1
US6283203B1 US09/530,511 US53051100A US6283203B1 US 6283203 B1 US6283203 B1 US 6283203B1 US 53051100 A US53051100 A US 53051100A US 6283203 B1 US6283203 B1 US 6283203B1
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US
United States
Prior art keywords
pipeline
guide rail
pipe supports
derrick
pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US09/530,511
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English (en)
Inventor
Bjørn Eilertsen
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Engineering and Drilling Machinery AS
Original Assignee
Engineering and Drilling Machinery AS
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Publication date
Application filed by Engineering and Drilling Machinery AS filed Critical Engineering and Drilling Machinery AS
Assigned to ENGINEERING & DRILLING MACHINERY AS reassignment ENGINEERING & DRILLING MACHINERY AS ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: EILERTSEN BJORN
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Publication of US6283203B1 publication Critical patent/US6283203B1/en
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables

Definitions

  • the present invention relates to an apparatus for preventing pipe buckling when downwardly directed axial forces are applied to a pipeline which extends from a derrick down into a well bore, especially when snubbing.
  • Snubbing is carried out when a drill pipe or production tubing must be forced down into the well against well pressure, and the well pressure is so great that the pipe does not run down by virtue of its own weight. A axial force is then applied to the pipe, forcing the pipe down against well pressure. During snubbing of this kind there is a danger that the pipe might buckle sideways halfway between the top drive, which holds the pipe at its upper end, and the drill deck. The buckling may be so great that the pipe breaks.
  • the buckling length during snubbing is about 70 cm. This means that the pipe must be gripped at intervals of 70 cm in order to apply an axial force.
  • a pipe length in the derrick between the drill deck and the top drive, of a total of 9 m, this means that the pipe must be gripped about 13 times to prevent the pipe from breaking. Of course, this takes considerably longer than it would had it been possible to run down the whole pipe length in the derrick at one go.
  • the apparatus comprises a plurality of pipe supports which are arranged to extend from a guide rail in the derrick to the pipeline, and the pipe supports are movably arranged in the guide rail parallel to the pipeline.
  • FIG. 1 shows a derrick equipped with an apparatus according to the invention, with pipe supports in engagement with the pipeline;
  • FIG. 2 shows the apparatus according to FIG. 1, with the pipe supports pulled away from the pipeline;
  • FIG. 3 shows the apparatus according to FIGS. 1 and 2 where the pipe supports have be moved completely out of the path of travel of the top drive;
  • FIG. 4 shows the apparatus according to the invention removed from the derrick
  • FIG. 5 shows the apparatus according to the invention seen from above.
  • FIG. 6 is a detailed view of a pipe support.
  • FIG. 1 is a schematic illustration of a derrick 1 , in which there is located a top drive 2 , which is arranged to grip a pipeline 3 at the upper end thereof with the aid of a holder 4 .
  • FIG. 1 also shows an apparatus 5 in accordance with the present invention.
  • the apparatus 5 comprises a pair of guide rails 6 and 7 , each being generally U-shaped and including legs 6 a , 7 a , 6 b , 7 b and a U-bend 6 c , 7 c .
  • the legs 6 a , 6 b , 7 a , 7 b are parallel.
  • a plurality of pipe supports 8 are movably arranged in the guide rails 6 and 7 and are linked together via articulations 9 to give a continuous pipe support chain 10 .
  • the pipe support chain 10 is connected via an articulation 11 to the top drive 2 and follows this during the vertical movements thereof.
  • the guide rails 6 and 7 are suspended in the derrick via suspension rails 12 , suspension stays 13 and hydraulic cylinders 14 .
  • the hydraulic cylinders 14 are arranged to pull the guide rails 6 and 7 away from the pipeline 3 and move the guide rails 6 and 7 back towards the pipeline 3 again.
  • the guide rails 6 , 7 engage with nonillustrated rollers in the suspension rails 12 and roll along these when they are moved away from and towards the pipeline 3 .
  • the suspension stay 13 is pivotally arranged in the derrick 1 . In FIG. 2, the guide rails 6 and 7 are moved a small distance away from the pipeline 3 .
  • FIG. 3 the guide rails 6 and 7 are moved completely out of the path of travel of the top drive 2 .
  • the guide rails 6 and 7 are then moved towards the extreme end of the suspension rails 12 , and the pipe support chain 10 is moved from the guide rail leg 6 a , 7 a , via the U-bend 6 c , 7 c to the guide rail leg 6 b , 7 b .
  • the articulation 11 is disconnected from the top drive 2 . It is now possible to carry out operations in the derrick which do not require the apparatus according to the invention, and where the apparatus will not be in the way either.
  • FIG. 4 shows the apparatus according to the invention removed from the derrick to better illustrate the details thereof.
  • FIG. 5 shows the apparatus of the invention from above, and here the same reference numerals are used for the same parts as in the preceding figures.
  • FIG. 6 shows a pipe support in detail.
  • the pipe support 8 comprises guide rail rollers 15 , which are arranged for engagement with the guide rail 6 , 7 at one end thereof, and at the opposite end thereof comprises a roller 16 having a concave surface 17 for contact with the pipeline 3 .
  • FIG. 1 When the apparatus according to the invention is in use, the situation shown in FIG. 1 arises.
  • the pipe supports 8 will be pressed against the pipeline 3 with a force determined by the hydraulic pressure of the cylinders 14 . Owing to the concave surface 17 of the rollers 16 , the pipeline 3 will in fact be prevented from buckling transverse to the longitudinal extent of the pipe supports 8 , even though pipe supports 8 are only arranged in pairs.
  • the top drive 2 presses the pipeline 3 downwards, the top drive 2 will move downwards in the derrick. Since the pipe support chain 10 is physically connected to the top drive 2 , the pipe support chain 10 will also move downwards together with the pipeline 3 .
  • the lowermost pipe supports 8 will be pushed into the U-bend 6 c , 7 c and then upwards in the guide rail leg 6 b , 7 b.
  • the pipe supports do not necessarily need to be linked together in a continuous chain, but they could move individually and synchronously by means of, for example, small motors positioned in connection with each pipe support.
  • the pipe supports do not necessarily need to be physically connected to the top drive, but synchronisation therewith may, for example, be attained by means of an electronic control.
  • the guide rails may also be suspended in the derrick in some other way, or be fixedly mounted therein, the pipe supports then preferably being designed telescopically, so that their outer ends can be pulled away from the pipeline.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Supports For Pipes And Cables (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Joints Allowing Movement (AREA)
  • Paper (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Buffer Packaging (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Coating With Molten Metal (AREA)
  • Heat Treatment Of Articles (AREA)
US09/530,511 1997-10-31 1998-10-30 Device for preventing pipe buckling Expired - Fee Related US6283203B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO975016A NO306353B1 (no) 1997-10-31 1997-10-31 Anordning for Õ hindre rörutböyning
NO5016/97 1997-10-31
PCT/NO1998/000322 WO1999023347A1 (en) 1997-10-31 1998-10-30 Device for preventing pipe buckling

Publications (1)

Publication Number Publication Date
US6283203B1 true US6283203B1 (en) 2001-09-04

Family

ID=19901277

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/530,511 Expired - Fee Related US6283203B1 (en) 1997-10-31 1998-10-30 Device for preventing pipe buckling

Country Status (8)

Country Link
US (1) US6283203B1 (no)
EP (1) EP1027523B1 (no)
AT (1) ATE264989T1 (no)
AU (1) AU1446999A (no)
CA (1) CA2307561C (no)
DE (1) DE69823383D1 (no)
NO (1) NO306353B1 (no)
WO (1) WO1999023347A1 (no)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060272728A1 (en) * 2003-03-26 2006-12-07 Bjarte Langeland Hinged and segmented pipe
US20100141970A1 (en) * 2008-12-09 2010-06-10 Couwenhoven Douglas W Digital printing using similar colorants

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3402777A (en) 1967-07-03 1968-09-24 Watson Mfg Company Kelly stabilization systems
US3757858A (en) 1971-12-08 1973-09-11 Snub R Rig Corp Apparatus for moving pipe into and out of a well
US3797570A (en) * 1972-05-08 1974-03-19 Baker Oil Tools Inc Snubbing apparatus
US4250973A (en) 1979-03-05 1981-02-17 Hall James D Rock drilling apparatus
US4260029A (en) 1978-12-27 1981-04-07 Joy Manufacturing Company Midpoint centralizer
US5115861A (en) 1991-04-29 1992-05-26 Otis Engineering Corp. Tubing guide
US5309990A (en) * 1991-07-26 1994-05-10 Hydra-Rig, Incorporated Coiled tubing injector
US5454419A (en) * 1994-09-19 1995-10-03 Polybore, Inc. Method for lining a casing
US5595248A (en) * 1995-08-25 1997-01-21 Den-Con Tool Co. Pipe alignment apparatus
US5890534A (en) * 1995-03-10 1999-04-06 Baker Hughes Incorporated Variable injector

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3402777A (en) 1967-07-03 1968-09-24 Watson Mfg Company Kelly stabilization systems
US3757858A (en) 1971-12-08 1973-09-11 Snub R Rig Corp Apparatus for moving pipe into and out of a well
US3797570A (en) * 1972-05-08 1974-03-19 Baker Oil Tools Inc Snubbing apparatus
US4260029A (en) 1978-12-27 1981-04-07 Joy Manufacturing Company Midpoint centralizer
US4250973A (en) 1979-03-05 1981-02-17 Hall James D Rock drilling apparatus
US5115861A (en) 1991-04-29 1992-05-26 Otis Engineering Corp. Tubing guide
US5309990A (en) * 1991-07-26 1994-05-10 Hydra-Rig, Incorporated Coiled tubing injector
US5454419A (en) * 1994-09-19 1995-10-03 Polybore, Inc. Method for lining a casing
US5890534A (en) * 1995-03-10 1999-04-06 Baker Hughes Incorporated Variable injector
US5595248A (en) * 1995-08-25 1997-01-21 Den-Con Tool Co. Pipe alignment apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060272728A1 (en) * 2003-03-26 2006-12-07 Bjarte Langeland Hinged and segmented pipe
US7448414B2 (en) 2003-03-26 2008-11-11 Bjarte Langeland Hinged and segmented pipe
US20100141970A1 (en) * 2008-12-09 2010-06-10 Couwenhoven Douglas W Digital printing using similar colorants
US8085436B2 (en) 2008-12-09 2011-12-27 Eastman Kodak Company Digital printing using similar colorants

Also Published As

Publication number Publication date
CA2307561C (en) 2004-05-25
EP1027523A1 (en) 2000-08-16
CA2307561A1 (en) 1999-05-14
ATE264989T1 (de) 2004-05-15
NO975016L (no) 1999-05-03
WO1999023347A1 (en) 1999-05-14
EP1027523B1 (en) 2004-04-21
DE69823383D1 (de) 2004-05-27
NO975016D0 (no) 1997-10-31
AU1446999A (en) 1999-05-24
NO306353B1 (no) 1999-10-25

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